Easily prepare your existing Firestone EPDM liner for splicing or seaming using this Firestone QuickPrime Plus. This synthetic polymer primer is specifically designed to clean and prepare black, EPDM liner prior to use with QuickSeam products. The product is simple to apply using an existing QuickScrubber pad and handle, and once spread onto your liner, makes the surface tacky and ready for other seaming adhesives. The convenient, quart sized container covers up to 25 square feet of liner for versatility. Ready your EPDM liner for seaming with this QuickPrime Plus.